Thrust-bearing.



A. KINGSBURY.

. THRUST BEARING.

APPLlc/Taon m50 Amma. |911.

1 ,270,622. l' Patented June 25, 1918..

'31:1 Shanna@ a Wm n r ALBERT KINGSBURY, 0F PITTSBURGH, PENNSYLVANIA.

' THRUST-BEARING.

Original application filed April 5, 19116,

To all whom z't may concern Be it known that I, ALisEiiT KINGsURY, acitizen of the United States, and a resident of Pittsburgh, Alleghenycounty, and State of Pennsylvania, have invented certain new and usefulImprovements in Thrust-Bearings, of which the following is a specificaation, reference being had to the accompanyin drawings, forming va partthereof.

/Iy invention relates-to thrust bearings and particularly to suchl asembody bearing members which' arc'tilted by the wcdging action of theoil .when the bearing is'in operation.

This application is a division of my copending appli lation Serial No.89,000, tiled April 5th. 1916, for thrust bearings.

()ne object of inyjpr'esent invention is to provide a simple and1eliablebeariiig member embodying particularly, effective means forpreventing the improper distortion of that portion of the tiltablcmember which is provided with the bearing surface even if the bearingsurface is relatively large.

Another object is to provide a unitary tiltable member which possessesall the advantages of a one-piece bearing shoe and at the 'sainel timeavoids the possibility of improperly distorting the bearing surface.

Another object is to provide a bearing shoe that shall truly cooperatewith and conform to the opposed bearing surface although thc latter iscrowned or distorted when the bearing is in operation as hereinafterexplained. i

Other objects and advantages of my invention will be set forthhereinafter. and in order that `my invention may be thoroughlyunderstood. l will now proceed to describe thesame in the followingspecification. and then point out the novel features thereof in appendedclaims.

Referring to the drawings:

Figure 1- is a sectional elevation on the line 1-1 of Fig. 2, of abearing which embodies my invention.

liig. 2 is a partially sectional on the line 2-2 of Fifi. 1.

` Referring first to Figs. 1 and 2. the structure here, shown comprisesa stationary frame 1() having a hole or opening 11 through which extendsa shaft 12. Secured to the shaft near its upper end Ais a thrust block13 to which is bolted or otherwise atplan view Specication of LettersPatent.

`is essential to the invention.

tached a thrust collar 14 having an annular bearing surface 15.V

Bolted or rotherwise secured to the frame is a base 16 upon which aplurality of bearing shoes 17 are tilta'bly mounted.

As clearly shown in Fig. 1, the bearing Patenteaaane 2.5, 4191s.

Serial'No. 89,000.' Divided and this' application tiled August 29, 1917.seriaiNo.1ss,72a.

shoes 17 areiinitary structures which may be integral if desired. Eachshoe is preferably proyided with a face 18 of soft metal and iscomposedgof a bearing member 19, a supporting member 20, and spacinglugs or webs 21. The supporting member has lthe same form in o'eneral,as'the bearing member, but is slig itly smaller, as viewe in plan, andhas a convex top surface 22 which is directly opposite a concave surface23 of the bearing member. The concavity of 1.) increases its iexibility,and the convexity of 2() makes itI more rigid. vNeither 'llie support ismounted upon the spherically curved head 2-1 of u screw 25constitutjected lo the wedging action of the lubricat ing fluid when thebearingr is in operation is relatively flexible, and supported at manypoints. 'lhus not only is convex curving of the bearing surface or otherimproper distortion of the bearing surface member prevented, butfurthermore the member is adapted by reason of its flexibility to con-4form to the surface of the thrust collar 14 or other opposed bearingrsurface with which it may coi'iperate even though the latter is crownedor curved in operation.

At the saine time the shoe is a unity and is free to tilt as such uponthe adjustable supporting r screw on which it is mounted.

'lhe bearingl shoe construction disclosed ing an adjustable pivotalsupport. The several screws-or studs on which the bearing Zshoes aremounted are screwed into tapped lop and claimed has the furtheradvantage 0f f to prevent crowning of either thev shoes or I the thrustcollar.

The structure illustrated may be modilied in various Waye within thespirit and scope of my invention, and intend only such limitations asare imposed by the ap pended claims.

What l claim in:

Il. A tiltable bearingshoe comprising' a` bearing member, a supportingmember, and a plurality of integral Webs supporting the bearing member.

2. A tiltable bearing shoe comprising' a relatively flexible .bearingmember, a supporting member, and a plurality of integral Webs supportingthe bearing member.

3. A unitary tili'abie bearing shoe bonu prising a bearing member,' asupporting member, and a plurali-ty of integral VWebs supporting theVhearing; member near lits edges.

flr' tiltablebearing shoe comprising a relatively flexible bearingmember, and means integral therewith for supporting the bearing memberat a plurality of distributed points.

5. A unitary Shoe comprising a relatively flexible bearing member havinga concave bottom surface, a supporting member, and a plurality ofintegral webs Supporting the bearing member near its edges.

6. A unitary bearing shoe col'nprising'a bearing member, and aSupporting member :having a plurality of integral webs spacing theaforesaid members apart.v

7. A unitary bearing Shoe comprising a bearing member having a concavebottom surface, a supporting member having a convex top surface and apliirality of integral S. A unitary bearing shoe comprising a relativelyflexible member having a' concave bottom surface, a rigid supportingmember i ALBERT KlNGSBURY.

45 AWebs spacing the aforesaid members apart.-

